<template>
  <div id="login-content">
    <div class="el-icon-apple apple"></div>
    <el-form
      :model="ruleForm"
      status-icon
      :rules="rules"
      ref="ruleForm"
      label-width="100px"
      class="demo-ruleForm"
    >
      <el-form-item label="年龄" prop="age">
        <el-input v-model.number="ruleForm.age"></el-input>
      </el-form-item>
      <el-form-item label="密码" prop="pass">
        <el-input type="password" v-model="ruleForm.pass" autocomplete="off"></el-input>
      </el-form-item>
      <el-form-item label="确认密码" prop="checkPass">
        <el-input type="password" v-model="ruleForm.checkPass" autocomplete="off"></el-input>
      </el-form-item>

      <el-form-item>
        <el-button type="primary" @click="submitForm('ruleForm')">提交</el-button>
        <el-button @click="resetForm('ruleForm')">重置</el-button>
        <router-link to="/register">已有账号，请登录</router-link>
      </el-form-item>
    </el-form>
  </div>
</template>
<script>
import axios from "axios";
export default {
  beforeRouteLeave(to, from, next) {
    // console.log("beforeEnter");
    const safeRouter = confirm("你确定要离开么？");
    if (safeRouter == true) {
      next();
    } else {
      next(false);
    }
  },
  data() {
    var checkAge = (rule, value, callback) => {
      if (!value) {
        return callback(new Error("年龄不能为空"));
      }
      setTimeout(() => {
        if (!Number.isInteger(value)) {
          callback(new Error("请输入数字值"));
        } else {
          if (value < 9999) {
            callback(new Error("必须年满9999岁"));
          } else {
            callback();
          }
        }
      }, 1000);
    };
    var validatePass = (rule, value, callback) => {
      if (value === "") {
        callback(new Error("请输入密码"));
      } else {
        if (this.ruleForm.checkPass !== "") {
          this.$refs.ruleForm.validateField("checkPass");
        }
        callback();
      }
    };
    var validatePass2 = (rule, value, callback) => {
      if (value === "") {
        callback(new Error("请再次输入密码"));
      } else if (value !== this.ruleForm.pass) {
        callback(new Error("两次输入密码不一致!"));
      } else {
        callback();
      }
    };
    return {
      ruleForm: {
        pass: "",
        checkPass: "",
        age: ""
      },
      rules: {
        pass: [{ validator: validatePass, trigger: "blur" }],
        checkPass: [{ validator: validatePass2, trigger: "blur" }],
        age: [{ validator: checkAge, trigger: "blur" }]
      }
    };
  },
  methods: {
    submitForm(formName) {
      axios.post(
        "https://element-2eaa4.firebaseio.com/user.json",
        this.ruleForm
      );
      this.$refs[formName].validate(valid => {
        if (valid) {
          alert("数据成功提交firebase!");
          this.$router.push("/register");
        } else {
          console.log("error submit!!");
          return false;
        }
      });
    },
    resetForm(formName) {
      this.$refs[formName].resetFields();
    }
  }
};
</script>
<style lang="less" scoped>
a {
  text-decoration: none;
  font-size: 12px;
  padding-left: 10px;
  color: rgb(237, 128, 128);
}
.el-form {
  padding: 0 20px 0 0;
}
#login-content {
  width: 600px;
  background-color: #eee;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 4px;
}
.apple {
  font-size: 50px;
  text-align: center;
}
</style>